No there is not a single train which does not halt at lonavala. Post lonavala is a ghat section so UP trains usually take a commercial as well as technical halts at lonavala. Doronto will also need to halt at khandala in UP direction plus 2 more halts on the ghats for mandatory brake testing. And in down direction too its a mandatory halt for banker detachment. Plus lonavala is a hill station which is next to khandala hence many tourist too travel at these locations.